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Text Description: Tephra sample from within 2 m of the surface. Within inorganic silt, below a ~1 m thick organic-rich silt. Up to 1 cm thick, with a sharp lower contact and diffuse upper contact. Tephra is continuous across the section until it is obscured by colluvium. References: ![]() |
StationID | Latitude | Longitude | Geologist | DateVisited | Age Info | Volcano | Eruption | Location Description | Text Description | Sample ID | Sample Type 1 | Sample Type 2 | Final Unit | Material | Coeff | SiO2 | TiO2 | Al2O3 | FeOT | MnO | MgO | CaO | Na2O | K2O | P2O5 | Total-majors | REF majors | METH majors | Fe2O3/Fe203T orig | FeO/FeOT orig | Volatiles csv | METH volatiles | Cs | Rb | Ba | Sr | La | Ce | Pr | Nd | Sm | Eu | Gd | Tb | Dy | Ho | Er | Tm | Yb | Lu | Y | Zr | Nb | Hf | Ta | Pb | Th | U | Sc | V | Cr | Fe | Co | Ni | Cu | Zn | Ga | Mo | As | Na | K | Ref trace1 | METH trace1 | Rb | Ba | Sr | La | Ce | Nd | Sm | Eu | Gd | Dy | Er | Yb | Lu | Y | Zr | Nb | Pb | Th | U | Sc | Ti | V | Cr | Ni | Cu | Zn | Ga | Ref trace2 | METH trace2 | Light csv | Halogen csv | other major csv | other lile csv | other ree csv | other hfse csv | other hpe csv | other tm csv | other misc csv | |
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Little_Montauk | 65.104 | -141.417 | Unknown, Unknown | 106000 ± 10000 TL; 7423; Age is approximate. Average age of two infrared stimulated luminescence ages on loess bracketing VT tephra at Halfway House. | Little Montauk, Alaska. Series of loess bluffs on a 60-m-high bedrock terrace. Coordinates from Jensen and others (2011). Datum not specified, assumed to be NAD83. | Tephra sample from within 2 m of the surface. Within inorganic silt, below a ~1 m thick organic-rich silt. Up to 1 cm thick, with a sharp lower contact and diffuse upper contact. Tephra is continuous across the section until it is obscured by colluvium. | UA1100 | Tephra Fall | Cumulate | Glass | 70.11 | 0.59 | 14.87 | 3.34 | 0.11 | 0.74 | 2.63 | 4.57 | 2.88 | 7423 | EMP | 3.34 | Cl=0.16; H2O=2.77 | EMP |
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